Bearing bolt



' Jan. 1,1924 I 1,479,261

M.- STANDISH BEARING BOLT Filed Jan. 26, 1922 Patented Jan. 1, 1924.

MYLESSTANDISH, F OMAHA, NEBRASKA. Y

EARING BOLT:

A plication ales January 26, 1922. Serial No. 531,910.

To all whom it may concern:

Be it known that I, MYLns "SrANnIsm'a citizen of the United States,residin at Omaha, in the county of Douglas and tate of Nebraska, haveinvented certain new-and useful Improvements in Bearing Bolts, of whichthe following is, a specification. T

This invention relates to a new. and improved bearing bolt and morespecifically to a bearing bolt'assembly adapted to automatically move,the nut upon the bolt to take up wear in the bearing. In the bearingssuchas those uponthe piston rods of internal combustion engines,-aconsiderable wear takes place and this wear causes knocks in the engine.With ordinary types of bolts, it is necessaryto periodically take downengines to tighten up the bearing bolts and thus eliminate the knockswhich develop dueto the'wear. V

By the use of my improved bolt, the wear is automatically takenupand thedevelopment of knocks prevented. This results not only in the preventionof thebad effect upon the en'gine due to the knocksbut reduces thewear-upon the bearings since they are constantly kept tight. It furtherresults in a saving of expense and lost time caused by taking down theengine as requiredwith an 90 ordinary construction. These bolts arecommonly applied to such engines in such posi: tions that it isrelatively difiicult to reach the bolts for purposes of applicationorad-- justment. With some types of engines, they are reached only frombelow the machine. When manipulated from such positions, it is diflicultfor the mechanic to get two hands on the work and it is, therefore,highly de sirable that a bolt be capable of application 40 and ofadjustmentby means of one hand.

Various types of bolts have been evolved in the endeavor to provide abolt whichwill take up wear in this manner but I have found that thereason that threadsjformed'upon that portion of the bolt which engagesthe bearing members serve to prevent or impede movement of themembersunder the influence of thenut and; thus the wear is -unotproperly taken up.

It 's an object of the presentinvention to provide a bearingboltassembly adapted 1 to automatically keep the nut in clamping contactwith the bearingmember to take up 5% wear in the bearing. V j V certainofthem failed to operate for v 15 extending'therefrom. The spring It isa further object to provide an assembly which may be readily applied,adjusted and removedwith one hand. "ff. A .It isan additional object toprovide'a nut and 'olt so related that the threadsgupon the bolt areentirely enclosed within the nut assembly and wherein the nut has arange of movement. for takinfg'upfwear, throughout which range thethreads are" so enclosed. It is also an object to provide a bearing boltassembly which is simple in construction, relatively inexpensive inmanufacture and composed'of but few parts. 7

Other and further objects will appear-as the description proceeds. f

Broadly, my invention comprises abearing bolt assembly comprising athreaded bolt, a nut threaded on said bolt, a follower associated withthe nut by means of a spring, a member adapted to be non-rotatablysecured to the bolt beyond the follower, said member and follower beingadjustably'associated in such manner as to vary thetension upon thespring. i

of my invention in ings, in-which p V I Figure 1 'is'an elevationshowing bearing members which are retained in :place oy means of a pairof my bolt assemblies;

- Figure 2 is an enlarged elevation of the bolt assembly; V Y

Figure 3 is a view of Figure 2 as seen from above;

Figure 4: is'a .viewlsimilar to Figure 9, the

nut follower and ratchet shown in section; and V V I Figure 5 is asection takenonline 5 5 of Figure 4. J 7 i As shown in Figure 1, the twobea'ringasmember semblies A serve. to retain the bearing-niembers B andC in close engagement with'the shaft D. ,Referring now to, the assemblyin detail,

as bestshown in Figures 2'and 4, it"corn-"" Fitted upon the threadedportion 9 of-the bolt is the nut10." This nut is provided with prises*the bolt 7 having the usualhead 8. i

follower 13 is providedwith the 'sleeveportion 14: adapted to fit aroundthe portion 12 of the nut. The sleeve has the knurled fiange V I haveillustrated a preferred embodiment the accompanying'drawthe opening 17as shown circles the sleeve portions of the nut and follower, one end ofthis spring being connected to the flange 11 of the nut through in Fig.5. The opposite end 18 of the spring extends through the radiallyelongated slot 19 in the flange 15 of the follower.

The bolt is provided with the reduced extension 20, the outer portion ofwhich is proyided with the left hand thread 21. That portioii of theextension intermediate the threaded portion and thernain body of thebolt is smooth, being cutaway to the base 'of the threads. The member 28is provided with t he threaded screwed over the portion 21 of theextension and to rotatablyfit upon the smooth relieved 7 portion 22 Themember- 23 is provided with the slot 24 which is adapted to receive the.cotter pin 25. This pin is passed through an opening in the boltextension as best, shown in Figures 3 and i. The member 23 is furtherprovided with the radially extending ratchet teeth 26, As best shown inFigures 2 and 3, the end 18 of thespring lfi isbent a distance beyondthe flange 15 sufiicient for this'end oft-he spring to enthe teeth 26.The teeth serve to move the end of the, spring radially outwardly in theslot 19 while the end is drawn inwardly against the teeth by the tensionof the spring. I

' In assembling my bolt upon the bearing such that the teeth members,the bolt is passed through the bearing and bearing cap, and the nuttogether with the knurled follower are threaded by hand upon the boltuntil the nut is brought firmly against the 7 bearing cap. During thisoperation, the nut-and follower are held together by theiri'n'terengaging sleeve portions and by the spring. When the hand isremoved, the follower is held up by the spring so that it will not falloil-T the bolt. 7

The ratchet member is then screwed into place means of the left handthread. The rotation upon the left hand thread is do not functioninrelation to the end of the spring. When the ratchet member has passed onto the sinooth portion of the extension, it is rotated to aline notch 2L with the cotter pin hole in the bolt and the cotter pin is inserted.The thread-v ed portion 21 holds the nut from dropping off the boltwhile it .is being rotated to aline the openings and while thecotter pinis be- "ing. inserted. thus making the whole process one hand.

readily carried out by now in a position lhe entire assembly is uponthe, spring; Itis now a simple matter to rotate the follower by means ofits lmurleddisk portion in the proper direction to put tensionupon thespring, that is, in the clockwise direction as seen in Figure 3.

opening adapted V to I be end in order to aid teeth to maintain thespring under this tension when the knurled disk is released.

An advantage of this construction lies in the fact that the bearing capwhen placed in positionv is secured by both bolts without there beingany tension on the spring. Tension can then be applied equally upon eachbolt by inerely counting the number of teeth through which the springprogresses in turning the knurled lisk upon each bolt. I

In removing the bolt assembly, the cotter pin is firstremoved and thespring tension until thetension isrelieved The rather member may 'the11be readily disengaged from the end of the spring and maybe turnedoff ofthe left hand thread and re moved "from the bolt; The nut is thenrerf'no'ved'by rotating it and turning it eff the rlght hand threadwhich it engages, The

then immediately rotates the ratchet member 80 Y follower and springaremovea with the nut.

It will be noted that the n s Counter:

bored at 27 so that the face of the -nut in engagement with the bearingcap extends beyond the threaded portion of the'bolt.

There are thus no threads on the portion of the bolt within the bearingcap and the cap is easily adjustable upon the smooth surface of thebolt. The thread upon the bolt is also brought up the full depth to its"in presenting the smooth surface in this manner. 7 The nut may thus bebrought up so that its threaded portion extends fully to the end of thethreaded portion of thebolt and its counterbo'red 'por tion extendsbeyond the thread, of the bolt.

, The form the preferred embodiment but I am aware that various changesmay be made to adapt' the bolt to varying constructions and conditions.It is my intention to sever all modifications coming within the spiritand scepe of theappended claims.

Iclaim: p H I 1. Abeannig bolt assembly comprising a from, aspring'ha'i'li'ng its opposite ends secui'ed-to the nut 'an'dfollo'werand encircling of the invention illustrated is threaded bolt, a nutthreaded on bolt,

thefsleeves, and afinernher secured to the bolt 7 beyond thefollower'aiidassociated with'the follower in adjusted ei'mumreremialxreia" tion to the bolt. 5 r

A be i g threaded belt, a nut thre'a renown in, such manner a tomaintainthe bolt assembly coiiiprising a dad onfsaidbolt,

a fbllowei' on the bolt, a spring having'its opposite ends secured tothe nut and ffollbs/er, and a membersecn'red to; the; bolt beyond thefollower, the spring engaging the member in such manner as to maintainthe s rin is adjusted relation to the sen 3. A bearing bolt assemblyecimprising a threaded bolt, a nut threaded on said bolt, a follower onthe bolt, a spring having its opposite ends secured to the nut andfollower, and a member secured to the bolt beyond the follower, thespring extending beyond the follower and engaging the men her in suchmanner as to maintain the spring and follower in adjusted relation tothe bolt.

4. A hearing bolt assembly comprising a threaded bolt, a nut threaded onsaid bolt, a follower supported by the nut out of engagement with thethreads, the follower being rotatable relative to the nut, a springhaving its opposite ends secured to the nut and follower, and a membersecured to the bolt beyond the follower and associated with the followerin such manner as to maintain the follower in adjusted circumferentialrelation to the bolt.

5. A bearing bolt assembly comprising a threaded bolt, a nut threaded onsaid bolt, a follower supported by the nut out of engagement with thethreads, the follower being rotatable relative to the nut, a springhaving its opposite. ends secured to the nut and follower, and a membersecured to the bolt beyond the follower, the spring extending beyond thefollower and engaging the member in such manner as to maintain thespring and follower in adjusted relation to the bolt.

6. A bearing bolt assembly comprising a threaded bolt, a nut threaded onsaid bolt, a follower supported by the nut out of engagement with thethreads, the follower being rotatable relative to the nut, a springhaving its opposite ends secured to the nut and follower, and a ratchetmember secured to the bolt beyond the follower, the spring extendingthrough a slot in the follower and engaging the ratchet member in suchmanner as to adjustably maintain the follower in adjustedcircumferential relation to the ratchet member.

7. A bearing bolt assembly comprising a threaded bolt, a nut threaded onsaid bolt, a follower on the bolt, a spring having its opposite endssecured to the nut and follower, and a ratchet member fixedly secured tothe bolt beyond the follower, the ratchet member being provided withradially extending ratchet teeth, the end of the spring threaded bolt, anut threaded on said bolt,

the nut being counterbored wherebyits face may extend beyond the end ofthe thread on the bolt toward the head of the bolt, a follower on thebolt, a' spring having its opposite ends secured to the nut andfollower, and a member secured to the bolt beyond the follower andassociatedwith the follower in such manner as to maintain the providedwith radially exa spring having its follower in adjusted circumferentialrelation to the bolt. 7

10. A hearing bolt assembly comprising a bolt having a right hand threadthereon, a nut fitting said thread, a follower on the bolt, a springconnecting the follower and nut, a reduced extension on the bolt havinga left hand thread thereon, and a member fitting on said extension andnon-rotatably secured thereto, the follower being adjustably associatedwith said member to vary the tension on said spring." 1

11. A bearing bolt assembly comprising a bolt having a right hand threadthereon, a nut fitting said thread, a follower on the bolt, a springconnecting the follower and nut, a reduced extension on the bolt havinga left hand thread on the outer end thereof, the inner portion thereofbeing smooth and a member adapted to be threaded over said threadedportion and to fit rotatably on said smooth portion and means to securethe member against rotation,:the follower being adjustably associatedwith said member to vary the tension on said spring.

Signed at Omaha, Nebraska, this 21st day of January, 1922.

- MYLES STANDISH.

